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Questions in biology

📝 Answered - Categorize each statement as True or False. Field of view is the range of depth that a specimen is in focus at a given time. Higher magnifications produce shallower depth of fields. IKI solution is used to stain the nuclei of cells. The total magnification for a compound microscope is the product of the magnifications of the ocular and objective lenses. Wet mount slides require curing and drying periods before they can be viewed with a microscope.

📝 Answered - What process involves white blood cells engulfing other cells or particles?

📝 Answered - Which tool is most appropriate for determining evolutionary relationships among species? A. Herbarium sheet B. Cladogram C. Botanical garden D. Dichotomous key

📝 Answered - In CAM plants, CO2 is a. temporarily fixed in phloem cells and later permanently fixed in the bundle-sheath cells. b. mainly obtained from oxidative respiratory processes. c. brought up to the leaves through air spaces in the stem so that the stomata of the leaves can be kept shut to prevent water loss. d. temporarily fixed at night and later permanently fixed during the day. e. fixed into organic matter just by the action of the enzyme rubisco.

📝 Answered - Explain the process of oogenesis. Explain the adaptation of various parts of the female reproductive system. The uterus wall is elastic so as to accommodate the growing of the foetus.

📝 Answered - i) Development of fruit without fertilization and that are seedless is known as: a) Polyembryony b) Apomixis c) Parthenocarpy d) Parthenogenesis ii) Nature has mechanisms to promote outbreeding in plants. Explain any two mechanisms existing in plants to promote outbreeding.

📝 Answered - (a) Leaves of ______ are used as food. Options: - Photosynthesis - Spinach - Petiole - Lamina

📝 Answered - In the sequential reactions of acetyl CoA formation and the citric acid cycle, pyruvate (the output from glycolysis) is completely oxidized, and the electrons produced from this oxidation are passed on to two types of electron acceptors. Place the labels on the left to show the net redox reaction in acetyl CoA formation and the citric acid cycle. Note that two types of electron carriers are involved.

📝 Answered - Which is the first step in the scientific method? A. Ask a question B. Conduct background research C. Construct a hypothesis D. Perform an experiment

📝 Answered - What effect do painkillers have on pathogens? A. No effect B. They kill them C. They cause them to mutate D. They cause them to reproduce